Annotation of loncom/interface/groupsort.pm, revision 1.22
1.1 harris41 1: # The LearningOnline Network with CAPA
1.4 harris41 2: # The LON-CAPA group sort handler
3: # Allows for sorting prior to import into RAT.
4: #
1.22 ! albertel 5: # $Id: groupsort.pm,v 1.21 2003/06/14 00:15:01 albertel Exp $
1.4 harris41 6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
1.1 harris41 20: #
1.4 harris41 21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
1.1 harris41 26: #
1.4 harris41 27: # http://www.lon-capa.org/
1.1 harris41 28: #
29: # YEAR=2001
1.6 harris41 30: # YEAR=2002
1.4 harris41 31: #
32: ###
1.1 harris41 33:
34: package Apache::groupsort;
35:
36: use strict;
37:
38: use Apache::Constants qw(:common);
39: use GDBM_File;
1.15 www 40: use Apache::loncommon;
1.1 harris41 41:
1.2 harris41 42: my %hash; # variable to tie to user specific database
43: my $iconpath; # variable to be accessible to multiple subroutines
1.17 www 44:
45: sub cleanup {
1.18 www 46: if (tied(%hash)){
47: &Apache::lonnet::logthis('Cleanup groupsort: hash');
48: unless (untie(%hash)) {
49: &Apache::lonnet::logthis('Failed cleanup groupsort: hash');
50: }
51: }
1.17 www 52: }
1.2 harris41 53:
54: # ---------------------------------------------------------------- Main Handler
1.1 harris41 55: sub handler {
56: my $r = shift;
1.9 www 57:
58: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
59: ['acts','catalogmode','mode']);
1.2 harris41 60: # color scheme
61: my $fileclr = '#ffffe6';
62: my $titleclr = '#ddffff';
63:
1.1 harris41 64: $r->content_type('text/html');
65: $r->send_http_header;
66: return OK if $r->header_only;
1.2 harris41 67:
1.8 www 68: # finish_import looks different for graphical or "simple" RAT
69: my $finishimport='';
70: if ($ENV{'form.mode'} eq 'simple') {
71: $finishimport=(<<ENDSMP);
72: function finish_import() {
1.10 www 73: opener.document.forms.simpleedit.importdetail.value='';
74: for (var num=0; num<document.forms.groupsort.fnum.value; num++) {
75: opener.document.forms.simpleedit.importdetail.value+='&'+
76: escape(eval("document.forms.groupsort.title"+num+".value"))+'='+
77: escape(eval("document.forms.groupsort.filelink"+num+".value"));
78: }
79: opener.document.forms.simpleedit.submit();
80: self.close();
1.8 www 81: }
82: ENDSMP
83: } else {
84: $finishimport=(<<ENDADV);
85: function finish_import() {
86: var linkflag=false;
87: for (var num=0; num<document.forms.groupsort.fnum.value; num++) {
88: insertRowInLastRow();
89: placeResourceInLastRow(
90: eval("document.forms.groupsort.title"+num+".value"),
91: eval("document.forms.groupsort.filelink"+num+".value"),
92: linkflag
93: );
94: linkflag=true;
95: }
96: opener.editmode=0;
97: opener.notclear=0;
98: opener.linkmode=0;
99: opener.draw();
100: self.close();
101: }
102: ENDADV
103: }
104:
105: # output start of web page
106:
1.1 harris41 107: $r->print(<<END);
108: <html>
109: <head>
110: <title>The LearningOnline Network With CAPA Group Sorter</title>
111: <script language='javascript'>
112: function insertRowInLastRow() {
113: opener.insertrow(opener.maxrow);
114: opener.addobj(opener.maxrow,'e&2');
115: }
116: function placeResourceInLastRow (title,url,linkflag) {
1.2 harris41 117: opener.newresource(opener.maxrow,2,opener.escape(title),
118: opener.escape(url),'false','normal');
1.1 harris41 119: opener.save();
120: opener.mostrecent=opener.obj.length-1;
121: if (linkflag) {
122: opener.joinres(opener.linkmode,opener.mostrecent,0);
123: }
124: opener.linkmode=opener.mostrecent;
125: }
1.8 www 126: $finishimport
1.1 harris41 127: function selectchange(val) {
1.3 harris41 128: var newval=0+eval("document.forms.groupsort.alt"+val+".selectedIndex");
1.1 harris41 129: orderchange(val,newval);
130: }
131: function move(val,newval) {
132: orderchange(val,newval);
133: }
134: function orderchange(val,newval) {
135: document.forms.groupsort.oldval.value=val;
136: document.forms.groupsort.newval.value=newval;
137: document.forms.groupsort.submit();
138: }
139: </script>
140: </head>
141: END
1.2 harris41 142: # read pertinent machine configuration
1.1 harris41 143: my $domain = $r->dir_config('lonDefDomain');
1.2 harris41 144: $iconpath = $r->dir_config('lonIconsURL') . "/";
145:
146: my %shash; # sort order (key is resource location, value is sort order)
147: my %thash; # title (key is resource location, value is title)
1.9 www 148:
1.4 harris41 149: my $diropendb;
1.11 www 150: # ------------------------------ which file do we open? Easy if explictly given
1.4 harris41 151: if ($ENV{'form.catalogmode'} eq 'groupsearch') {
152: $diropendb =
1.21 albertel 153: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_searchcat.db";
1.4 harris41 154: }
155: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
156: $diropendb =
1.21 albertel 157: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_indexer.db";
1.6 harris41 158: }
1.11 www 159: elsif ($ENV{'form.catalogmode'} eq 'groupsec') {
160: $diropendb =
1.21 albertel 161: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_groupsec.db";
1.11 www 162: }
163: # --------------------- not explicitly given, choose the one most recently used
1.6 harris41 164: else { # choose last accessed
1.11 www 165: my @dbfn;
166: my @dbst;
167:
168: $dbfn[0] =
1.21 albertel 169: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_searchcat.db";
1.11 www 170: $dbst[0]=-1;
171: if (-e $dbfn[0]) {
172: $dbst[0]=(stat($dbfn[0]))[9];
1.6 harris41 173: }
1.11 www 174: $dbfn[1] =
1.21 albertel 175: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_indexer.db";
1.11 www 176: $dbst[1]=-1;
177: if (-e $dbfn[1]) {
178: $dbst[1]=(stat($dbfn[1]))[9];
1.6 harris41 179: }
1.11 www 180: $dbfn[2] =
1.21 albertel 181: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_groupsec.db";
1.11 www 182: $dbst[2]=-1;
183: if (-e $dbfn[2]) {
184: $dbst[2]=(stat($dbfn[2]))[9];
185: }
186: # Expand here for more modes
187: # ....
188:
189: # Okay, find most recent existing
190:
191: my $newest=0;
1.12 www 192: $diropendb='';
1.11 www 193: for (my $i=0; $i<=$#dbfn; $i++) {
194: if ($dbst[$i]>$newest) {
195: $newest=$dbst[$i];
196: $diropendb=$dbfn[$i];
197: }
1.6 harris41 198: }
1.11 www 199:
1.4 harris41 200: }
1.11 www 201: # ----------------------------- diropendb is now the filename of the db to open
1.13 albertel 202: if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) {
1.2 harris41 203: my $acts = $ENV{'form.acts'};
204: my @Acts = split(/b/,$acts);
1.1 harris41 205: my %ahash;
206: my %achash;
1.2 harris41 207: my $ac = 0;
1.5 harris41 208: foreach (@Acts) {
1.2 harris41 209: my ($state,$ref) = split(/a/);
210: $ahash{$ref} = $state;
211: $achash{$ref} = $ac;
1.1 harris41 212: $ac++;
1.5 harris41 213: }
214: foreach (sort {$achash{$a} <=> $achash{$b}} (keys %ahash)) {
1.2 harris41 215: my $key = $_;
1.1 harris41 216: if ($ahash{$key} eq '1') {
1.3 harris41 217: # my $keyz=join("<br />",keys %hash);
218: # print "<br />$key<br />$keyz".$hash{'pre_'.$key.'_link'}."<br />\n";
1.2 harris41 219: $hash{'store_'.$hash{'pre_'.$key.'_link'}} =
1.1 harris41 220: $hash{'pre_'.$key.'_title'};
1.2 harris41 221: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}} =
1.1 harris41 222: $hash{'storectr'}+0;
223: $hash{'storectr'}++;
224: }
225: if ($ahash{$key} eq '0') {
226: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
227: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
228: }
229: }
1.5 harris41 230: }
231: foreach (keys %hash) {
1.1 harris41 232: if ($_ =~ /^store_/) {
1.2 harris41 233: my $key = $_;
234: $key =~ s/^store_//;
235: $shash{$key} = $hash{'storectr_'.$key};
236: $thash{$key} = $hash{'store_'.$key};
1.1 harris41 237: }
1.5 harris41 238: }
1.1 harris41 239: if ($ENV{'form.oldval'}) {
1.2 harris41 240: my $newctr = 0;
1.1 harris41 241: my %chash;
1.5 harris41 242: foreach (sort {$shash{$a} <=> $shash{$b}} (keys %shash)) {
1.2 harris41 243: my $key = $_;
1.1 harris41 244: $newctr++;
1.2 harris41 245: $shash{$key} = $newctr;
246: $hash{'storectr_'.$key} = $newctr;
247: $chash{$newctr} = $key;
1.5 harris41 248: }
1.2 harris41 249: my $oldval = $ENV{'form.oldval'};
250: my $newval = $ENV{'form.newval'};
251: if ($oldval != $newval) {
1.3 harris41 252: # when newval==0, then push down and delete
253: if ($newval!=0) {
254: $shash{$chash{$oldval}} = $newval;
255: $hash{'storectr_'.$chash{$oldval}} = $newval;
256: }
257: else {
258: $shash{$chash{$oldval}} = $newctr;
259: $hash{'storectr_'.$chash{$oldval}} = $newctr;
260: }
261: if ($newval==0) { # push down
262: my $newval2=$newctr;
263: for my $idx ($oldval..($newval2-1)) {
264: $shash{$chash{$idx+1}} = $idx;
265: $hash{'storectr_'.$chash{$idx+1}} = $idx;
266: }
267: delete $shash{$chash{$oldval}};
268: delete $hash{'storectr_'.$chash{$oldval}};
269: delete $hash{'store_'.$chash{$oldval}};
270: }
271: elsif ($oldval < $newval) { # push down
1.1 harris41 272: for my $idx ($oldval..($newval-1)) {
1.2 harris41 273: $shash{$chash{$idx+1}} = $idx;
274: $hash{'storectr_'.$chash{$idx+1}} = $idx;
1.1 harris41 275: }
276: }
1.2 harris41 277: elsif ($oldval > $newval) { # push up
1.1 harris41 278: for my $idx (reverse($newval..($oldval-1))) {
1.2 harris41 279: $shash{$chash{$idx}} = $idx+1;
280: $hash{'storectr_'.$chash{$idx}} = $idx+1;
1.1 harris41 281: }
282: }
283: }
284: }
285: } else {
1.2 harris41 286: $r->print('Unable to tie hash to db file</body></html>');
1.1 harris41 287: return OK;
288: }
289: untie %hash;
1.2 harris41 290: my $ctr = 0;
291: my $clen = scalar(keys %shash);
1.22 ! albertel 292: if ($clen > 1) {
! 293: $r->print(&Apache::loncommon::bodytag('Sort Imported Resources'));
! 294: $r->print(<<END);
1.14 matthew 295: <b><font color="#888888">Finalize order of resources</font></b>
296: <form method='post' action='/adm/groupsort' name='groupsort'
297: enctype='application/x-www-form-urlencoded'>
1.1 harris41 298: <input type="hidden" name="fnum" value="$clen" />
299: <input type="hidden" name="oldval" value="" />
300: <input type="hidden" name="newval" value="" />
1.14 matthew 301: <input type="hidden" name="mode" value="$ENV{'form.mode'}" />
1.3 harris41 302: END
1.11 www 303:
1.22 ! albertel 304: # --- Expand here if "GO BACK" button desired
! 305: if ($ENV{'form.catalogmode'} eq 'groupimport') {
! 306: $r->print(<<END);
1.2 harris41 307: <input type="button" name="alter" value="GO BACK"
308: onClick="window.location='/res/?catalogmode=groupimport'" />
1.3 harris41 309: END
1.22 ! albertel 310: }
! 311: if ($ENV{'form.catalogmode'} eq 'groupsearch') {
! 312: $r->print(<<END);
1.16 matthew 313: <input type="button" name="alter" value="New Search"
314: onClick="window.location='/adm/searchcat?catalogmode=groupsearch&cleargroupsort=1'" />
1.3 harris41 315: END
1.22 ! albertel 316: }
! 317: # ---
1.11 www 318:
1.22 ! albertel 319: $r->print(<<END);
1.2 harris41 320: <input type="button" name="alter" value="FINISH IMPORT"
321: onClick="finish_import()" />
1.1 harris41 322: <input type="button" name="alter" value="CANCEL" onClick="self.close()" />
323: END
1.22 ! albertel 324: $r->print("<table border='0'><tr><td bgcolor='#eeeeee'>");
! 325: $r->print("<table border=0><tr>\n");
! 326: $r->print("<td colspan='2' bgcolor='$titleclr'><b>Change order</b></td>\n");
! 327: $r->print("<td colspan='2' bgcolor='$titleclr'><b>Title</b></td>\n");
! 328: $r->print("<td bgcolor='$titleclr'><b>Path</b></td></tr>\n");
! 329: } else {
! 330: $r->print(<<END);
! 331: <body>
! 332: <form method='post' action='/adm/groupsort' name='groupsort'
! 333: enctype='application/x-www-form-urlencoded'>
! 334: <input type="hidden" name="fnum" value="$clen" />
! 335: <input type="hidden" name="oldval" value="" />
! 336: <input type="hidden" name="newval" value="" />
! 337: <input type="hidden" name="mode" value="$ENV{'form.mode'}" />
! 338: END
! 339: }
1.5 harris41 340: foreach (sort {$shash{$a}<=>$shash{$b}} (keys %shash)) {
1.1 harris41 341: my $key=$_;
342: $ctr++;
343: my @file_ext = split(/\./,$key);
344: my $curfext = $file_ext[scalar(@file_ext)-1];
1.20 albertel 345: my $iconname="unknown.gif";
346: my $embstyle = &Apache::loncommon::fileembstyle($curfext);
347: # The unless conditional that follows is a bit of overkill
348: $iconname = $curfext.".gif" unless
349: (!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn');
1.22 ! albertel 350: if ($clen > 1) {
! 351: $r->print("<tr><td bgcolor='$fileclr'>");
! 352: $r->print(&movers($clen,$ctr));
! 353: }
1.1 harris41 354: $r->print(&hidden($ctr-1,$thash{$key},$key));
1.22 ! albertel 355: if ($clen > 1) {
! 356: $r->print("</td><td bgcolor='$fileclr'>");
! 357: $r->print(&select_box($clen,$ctr));
! 358: $r->print("</td><td bgcolor='$fileclr'>");
! 359: $r->print("<img src='$iconpath$iconname'>");
! 360: $r->print("</td><td bgcolor='$fileclr'>");
! 361: $r->print("$thash{$key}</td><td bgcolor='$fileclr'>\n");
! 362: $r->print("$key</td></tr>\n");
! 363: }
! 364: }
! 365: if ($clen > 1) {
! 366: $r->print("</table></td></tr></table></form>");
! 367: } else {
! 368: $r->print(<<END);
! 369: <script type="text/javascript">
! 370: finish_import();
! 371: </script>
! 372: END
! 373: }
1.1 harris41 374: $r->print(<<END);
375: </body>
376: </html>
377: END
1.22 ! albertel 378:
1.1 harris41 379: return OK;
380: }
381:
1.2 harris41 382: # --------------------------------------- Hidden values (returns scalar string)
1.1 harris41 383: sub hidden {
1.2 harris41 384: my ($sel,$title,$filelink) = @_;
385: my $string = '<input type="hidden" name="title'.$sel.'" value="'.$title.
386: '" />';
387: $string .= '<input type="hidden" name="filelink'.$sel.'" value="'.
388: $filelink.'" />';
1.1 harris41 389: return $string;
390: }
391:
1.2 harris41 392: # --------------------------------------- Moving arrows (returns scalar string)
1.1 harris41 393: sub movers {
1.2 harris41 394: my ($total,$sel) = @_;
395: my $dsel = $sel-1;
396: my $usel = $sel+1;
397: $usel = 1 if $usel > $total;
398: $dsel = $total if $dsel < 1;
1.1 harris41 399: my $string;
1.2 harris41 400: $string = (<<END);
1.1 harris41 401: <table border='0' cellspacing='0' cellpadding='0'>
1.2 harris41 402: <tr><td><a href='javascript:move($sel,$dsel)'>
403: <img src="${iconpath}move_up.gif" alt='UP' border='0' /></a></td></tr>
404: <tr><td><a href='javascript:move($sel,$usel)'>
405: <img src="${iconpath}move_down.gif" alt='DOWN' border='0' /></a></td></tr>
1.1 harris41 406: </table>
407: END
408: return $string;
409: }
1.2 harris41 410:
411: # ------------------------------------------ Select box (returns scalar string)
1.1 harris41 412: sub select_box {
1.2 harris41 413: my ($total,$sel) = @_;
1.1 harris41 414: my $string;
1.2 harris41 415: $string = '<select name="alt'.$sel.'"';
416: $string .= " onChange='selectchange($sel)'>";
1.3 harris41 417: $string .= "<option name='o0' value='0'>remove</option>";
1.1 harris41 418: for my $cur (1..$total) {
1.2 harris41 419: $string .= "<option name='o$cur' value='$cur'";
420: if ($cur == $sel) {
421: $string .= "selected";
1.1 harris41 422: }
1.2 harris41 423: $string .= ">$cur</option>";
1.1 harris41 424: }
1.2 harris41 425: $string .= "</select>\n";
1.1 harris41 426: return $string;
427: }
428:
429: 1;
430:
431: __END__
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